1. The embryo is differentiated into 2-4 cells twenty-four hours after blossoming.
2. The embryo is morphologically completed ten days after blossoming.
3. The endosperm nucleus is developed immediately after the double fertilization, and the endosperm cells are centripetally formed. They are much more compactly developed at the antipodal side than in the other parts.
4. The cells of the endosperm are completed four days after blosoming, and the formation of starch grains begins to take place from the fifth day onwards.
5. The scutellum covers the coleoptile and the young root, and forms the germinating cavity and the door-tissue at the tip of the coleoptile.
6. The cotyledon consists of the scutellum and the coleoptile, the scutellum bundle corresponds to the midrib of the cotyledon, and the two coleoptile bundles to the side-veins.
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